Some users are having trouble transferring MP3 tracks to their iPod.
The primary symptom noted by Chris is this. He started with an audio CD burned from music purchased from iTunes. When that CD was ripped by iTunes to MP3s, those MP3s would not transfer to iPod under iTunes 7.2. Ripping to a different format, or ripping with a different application, resulted in MP3s that would transfer just fine.
However, we've also received reports from some readers who've experienced this issue with tracks that weren't necessarily put through the aforementioned wringer (bought from iTunes store, burned to CD, ripped back into iTunes as MP3s). In fact, some users have reported the problem with tracks that were merely bought from the iTunes store and left in their original state. As stated simply by one reader:
"After upgrading to iTunes 7.2, iTunes won't copy tracks to my iPod I purchased from the iTunes music store a while back. It claims they are an incompatible format. I haven't had time to check it out further, but these tracks synced and played properly on my iPod previously."
Regardless, there appears to be a common fix, as identified by Chris: rebuilding the iTunes Library. The steps are simple and are outlined in two Apple Knowledge Base articles:
First, write down all podcast subscription information, because you may lose it in the course of this procedure. (That one isn't actually in the Knowledge Base articles, but it did happen to me.)
Back up playlist information, in case you need to restore it later.
Delete the iTunes Library and import the existing XML version of the library information.
As Chris warns, you shouldn't undertake this procedure unless you're actually having a problem that it might solve.
Revert o earlier version In other cases, the only resolution to this problem is downgrading to iTunes 7.1.1, which is not an easy process if you don't have a backup handy since Apple neglects to maintain old software version downloads.
OldApps.com maintains a downloadable of version of iTunes 7.0.1, which you can try if you absolutely need to transfer problematic files to your iPod. You will need to delete the following files before attempting installation using the old package:
- The iTunes 7.2 application (located in /Applications)
- com.apple.iTunes.plist (from ~/Library/Preferences)
- iTunes.pkg (from /Library/Receipts)
- iTunesX.pkg (from /Library/Receipts)
- Cannot install
- Controlling iTunes Plus
- Embedded personal data, removal
- Errors when connecting to/purchasing from store; busy
- iTunes will not launch
- Persistent "checking for updates" -- fixes
- Problems transferring to iPod, fix